body {
    font-family: 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;


}


.fgh {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}


header {
    background-color: #4CAF50;
    color: white;
    padding: 20px 0;
    text-align: center;
    height: 150px;
    position: fixed;
    width: 100%;
    top: 0;
}



.hd {
    margin-top: 10px;
    text-align: center;
}




nav {
    background-color: #388E3C;

    top: 0;

}


.zx {
    color: #388E3C;
}


main {
    padding: 30px 0;
    background-color: #f9f9f9;
}

section {
    margin-bottom: 40px;
    background-color: white;
    padding: 25px;


}


.qw {
    border: 1px solid #ddd;



}



.qw img {
    width: 100%;
    height: 200px;

}





.qsc {
    width: 100%;

    margin-top: 20px;
}

.qsc th,
.qsc td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: center;
}

footer {
    background-color: #2E7D32;
    color: white;
    text-align: center;
    padding: 20px 0;
}


.hjkl p {
    margin: 5px 0;
}

.qw img {
    width: 100px;
}

nav {
    background-color: green;
    padding: 15px 0;
    width: 100%;
    text-align: center;
    margin-top: 190px;


}

.nav a {
    color: white;
    padding: 5px 10px;
}

.nav a:hover {
    background-color: #4CAF50;
}